The Galaxy Audio EB10 Professional Series Earbuds feature dual drivers with a passive crossover; one driver to deliver low frequencies and one to deliver the high frequencies. The EB10 has a MAX Power Input of 150mW and a Sensitivity of 120 dB/mW so these buds can handle power and are very efficient. Includes zippered carrying case with a cleaning rod and three pairs of Silicon Sleeves (small, medium and large) for a comfortable, custom fit. Extremely durable though ear pads a bit rough on ears after long listening. [ galaxy audio ] $280 usd